111311201304 has 192 divisors, whose sum is σ = 323826647040. Its totient is φ = 34458842880.

The previous prime is 111311201299. The next prime is 111311201333. The reversal of 111311201304 is 403102113111.

It is a happy number.

It is a super-2 number, since 2×111311201304² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9879034 + ... + 9890294.

It is an arithmetic number, because the mean of its divisors is an integer number (1686597120).

Almost surely, 2^111311201304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111311201304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161913323520).

111311201304 is an abundant number, since it is smaller than the sum of its proper divisors (212515445736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111311201304 is a wasteful number, since it uses less digits than its factorization.

111311201304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11470 (or 11463 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111311201304 its reverse (403102113111), we get a palindrome (514413314415).

The spelling of 111311201304 in words is "one hundred eleven billion, three hundred eleven million, two hundred one thousand, three hundred four".